Traits are also influenced by species via the use of the PERSONALITY creature token. For example, dwarves are slightly more straightforward than average with a median of 55 in that trait, whereas goblins aren't likely to help others out - their altruism median is a mere 25, and is capped at 50.

Traits also have an effect on which social skills are learned in social interaction, and determine whether certain actions may give a good or bad thought. Traits may have other, more subtle effects on creature behaviour, which are currently not entirely understood.

The results demonstrate a better-than 78% chance that a normalized trait's value will fall within the "Neutral" band (from 40 to 60). Further, the probability of an outlying value decreases as distance from the mean value (50) increases. The results are similar to a Normal distribution (aka "Bell curve"), however they do not fall off quite as quickly in the "tails". A "High" or "Low" trait value will be generated approximately 8.5% of the time. A "Very High" or "Very Low" value will appear less than 2% of the time. The probability of receiving a trait in the "Highest" (or "Lowest") band is less than 0.4%; the probability of a dwarf receiving multiple extreme values is infinitesimal.